John
F. Kennedy and
Nikita
Khrushchev both realised that the Cuban
Missile Crisis could easily
have resulted in nuclear war. In order to reduce the possibility of
misunderstanding
during an international crisis, they decided to set up a hot-line,
which would provide them with a direct means of communication. Kennedy
and Khrushchev also entered into negotiations to explore ways of reducing
the nuclear threat. As Kennedy explained, both sides had "a mutually
deep interest in a just and genuine peace and in halting the arms
race" and in
August 1963, both sides agreed to ban all tests of nuclear devices,
except those carried out underground.
Relations between the
Soviet Union, China
and the USA deteriorated during the Vietnam
War but by the
early 1970's the situation improved with governments supporting
the policy of détente.
Richard
Nixon
met Zhou
Enlai in
February 1972. He also twice visited Moscow (1972 and 1974) and Leonid
Brezhnev went
to Washington in 1973.
In July 1975 the leaders
of all the major countries, including the United
States and the Soviet Union, signed the
Helsinki Agreement, that accepted the European frontiers which had
been drawn up after the Second World War. This
included the acceptance of two German states, the Federal
Republic of Germany and
the